Filereader fails

When I read the file it gets the error below.
It happens sporadically, I noticed on the 1st try after a couple of hours being idle.
The pipeline has been working for the last 3 months and error began a week a go.
When tried again it now will work.

The background, the file was written/created in an earlier process in the main snaplex #1, and fileread in snaplex #2. This are all in one Task.

Unable to read from …

Check for URL syntax and file access permission